LN2 is supplied to the doser by a vacuum insulated pipe and flows into the dosing head. Sensor will detect the container and send pulses to the controller. Controller will command the dosing head to dispense the required amount of LN2 into the container. LN2 droplets quickly evaporate and expand 700 X into gaseous N2 equivalent, filling the container headspace with inert N2 gas at the desired pressure.